Documents / Official release
This 1966 NASA file collects memoranda by Jocelyn R. Gill of the Manned Flight Experiments Office, plus related correspondence, on the scientific experiments of the Gemini IX mission. Status reports from March and June 1966 describe the zodiacal light, airglow, micrometeorite and synoptic photography experiments, and an experiments debriefing held June 16. The file also contains a congratulatory telegram to astronauts Stafford and Cernan and a Naval Research Laboratory letter on the S-9 cosmic ray experiment. It reports no unidentified objects.
From the source:Release of 2026-06-12 Incident: June 3-6, 1966, Low Earth Orbit. Gemini IX (renamed Gemini IX-A) was the seventh crewed flight of the Gemini series, launched on June 3, 1966. The mission’s primary objectives included a spacewalk and multiple scientific and medical experiments. This document, dated June 16, 1966, is a transcript of a NASA debriefing of astronauts Thomas Stafford and Eugene Cernan. Pages 2-5 of this document contain the astronauts’ accounts of their observations of “flashing lights” and “sparkles” during the mission.
“Gemini 4”11 pages
2 . irglow Horizon Photography. . Koomen, mt/. No difficulties in t he schedule are anticipated . L'his is the first fli ht of this experiment and ,he f lia t hard11are is on sche ule . l'he equipment. has passed environmental testing . rhe exper ent is mounted on a movable bracket and is "pointed" by the astronaut . 'he first briefing of the astronauts tSEE and ~assett) has been held and another is to be held later in the o:r·ehe ., a rlanetarium. he astronauts seemed "reasonably happy" vi.th the experiment accordin~ to the princi al investigator . · crometeorite Collection on emini nkx:S/C: On schedule . No problems reported by the principal investigator . his is the irst flight of this experiment , having been ~ T-6. cancelled out on - 28 : Dim Light Photography , L . Dunkel.man/. his expe1·iment was first c.srried on Gemini VII and VI-A as 11 operational procedure . 11 After processiw:1 by SSSC and FEB thi s month , it is hoped that it ~~11 assume .fE.b!:_ experiment status . It uses cameras already assifned to the S/C and sensitive bl ck and white film, already qualified . Some further briefing will be required , robabl at the Planetarium and possibly can be accomplished at the same t:ime as S-1 1s Planetarium brief · Joc elyn R. Gill
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Official release, from the pursue collection. The PDF is mirrored here; the original link is above. 78 pages are in the text index: search them above, or from the library's search.